<svg xmlns="http://www.w3.org/2000/svg"
     xmlns:xlink="http://www.w3.org/1999/xlink"
     class="reftest-wait"
     onload="
        document.documentElement.pauseAnimations();
        document.documentElement.setCurrentTime(1.5);
        document.getElementById('a').setAttribute('begin', '3s');
        setTimeAndSnapshot(2, false)">
  <script xlink:href="../smil-util.js" type="text/javascript"/>
  <!--
    Tests that when we create an interval we freeze the begin time once it has
    started.

    So we have:

    a: begin: 2s
    b: begin: a.begin-1s

    at t=1s, b begins
    at t=1.5s, a's begin time is updated to 3s which will create a change notice

    However, b should not then restart at t=2s regardless of the restart mode
    because once the interval has started the begin time is fixed.
   -->
  <rect width="100" height="100" fill="red">
    <set attributeName="y" attributeType="XML" to="0" id="a" begin="2s"/>
    <animate attributeName="fill" attributeType="CSS"
      values="orange; green; purple"
      begin="a.begin-1s" dur="2s"/>
  </rect>
</svg>
